A simple model of bipedal walking predicts the preferred speed-step length relationship.

摘要: We used a simple model of passive dynamic walking, with the addition active powering on level ground, to study preferred relationship between speed and step length in humans. tested several hypothetical metabolic costs, one component proportional mechanical work associated pushing off stance leg at toe-off, another possible costs forcing oscillations swing leg. For this second component, cost based amount force needed oscillate divided by time duration that predicts speed-step much better than other such as done swinging The force/time models need recruit fast muscle fibers for large forces short durations. actual performed muscles appears be relatively less importance, although it minimized use bursts activity near-isometric conditions. combined minimization toe-off relationship.